How to add percentage condition for Accrual Rules

Summary:

I need to define a condition where - Clear the accruals if Invoice amount is less than 85% of receipt accruals.

Condition defined and not working - AccrualLine.Invoice Accrual Amount Less than (0.85*AccrualLine.Total Receipt Accrual Amount)

Full rule is -

AccrualLine.Item Category is "FOOD"

AccrualLine.Total Receipt Accrual Amount isn't 0

AccrualLine.Invoice Age more than 1

AccrualLine.Total Invoice Accrual Amount isn't 0

AccrualLine.Accrual Amount Difference less than 0

It works till here but as soon as I add below condition its doesn't work

AccrualLine.Invoice Accrual Amount Less than (0.85*AccrualLine.Total Receipt Accrual Amount).

Kindly suggest

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